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Service bulletins for the 2015 BMW M4

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

250 on file from NHTSA, as of 2026-10-19.

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Bulletins, newest first
B3405152018-11-05. Service bulletin. SUSPENSION. Ticking Noise from the Front Axle When Cornering What's New: ? Changes to the procedure, parts information and warranty labor operations. The customer may complain of a ticking noise from the front axle when cornering, maneuvering, parking or pulling away from a parking space. The noise can be heard as a metallic ticking from the area of the front wheels. Movement between the inner contact surfaces of the brake disc and drive flange of the wheel bearing hub.
B1303152018-11-05. Service bulletin. FUEL SYSTEM, GASOLINE. ?N20, N26, N55, N63TU, S63TU and S55 Engines: Bosch Injector ETK Part Number Error What's New: ? Identifying the injector type using the ISTA test plan ? Determining the injector part number using the new the parts table. The current version of the ETK incorporates multiple part number errors for the Bosch type injectors. Ordering the injectors by VIN number or manual identification in ETK may result in an incorrect part number.
B8409162018-11-05. Service bulletin. EQUIPMENT. "?SERVICE ACTION: SUPPLEMENTARY PAGE NEEDED IN OWNER'S MANUAL . Operator's manual of affected vehicles does not contain required information on wireless smartphone charging accessory. AFFECTED VEHICLE Vehicles which require this Service Action to be completed will show it as ""Open"" when checked either in the ""Service Menu"" of DCSnet (Dealer Communication System) or with the Key Reader."
B6506172018-11-05. Service bulletin. EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.. ?SATELLITE RADIO DETERIORATION IN RECEPTION QUALITY DUE TO NEW CELLULAR FREQUENCIES . INFORMATION Inform the customer that the introduction of these expanded frequencies by the wireless mobile providers may be influencing reception quality. BMW is currently working with the wireless mobile providers in order to improve the quality of reception and help alleviate the issues that are caused by the wireless mobile expanded frequencies. Once we have more information about this situation this service information bulletin will be updated. Currently Satellite Radio is provided by SiriusXM for BMW customers via geosynchronous (GEO) satellites located roughly above the equator. This means that the satellite signal to some parts of the United States can come in at an angle as low as 32 degrees to the horizon. Due to this angle, buildings, hills, trees, highway sound blocking walls or other obstacles might block the satellite signal coming from reaching the vehicle receiver antenna and might cause audio cut outs, unless the wireless provider has installed terrestrial repeaters. Reception quality decreases the further north you travel, as the angle of the incoming signal gets smaller. Also adverse weather conditions might affect reception. At this time, in the event of a customer complaint or inquiry on interference noise: Do not replace any parts Do not program or carry out other work on the vehicle Explain to customer about the new Wireless Communications Service (WCS) signals When investigating Satellite Radio cutouts or a temporary loss of reception: Please compare to a similarly equipped vehicle. Keep in mind the roofline of the vehicle, size of the antenna (sharkfin) and location of the antenna on the vehicle will all affect the strength of the reception. Do not compare a Sport Activity Vehicle (SAV) with a high roofline mounted antenna to a different vehicle such as a coupe or convertible with a much lower mounting point of the antenna. Replace no parts Do not prog
B6506162018-11-05. Service bulletin. ELECTRICAL SYSTEM. ?NBT HEAD UNIT ABORTS IMPORT OF CD Whats New: ? G12 (7 Series) removed ? I01 (i3) removed ? Warranty Section updated for removal of G12 and I01 . While importing a CD to the internal music collection of an NBT head unit the process aborts. You will see 'import error' on the radio display when this occurs. NBT Head Unit software
B5202172018-11-05. Service bulletin. SEATS. ?SERVICE ACTION: CHECK PUMP FOR BACKREST WIDTH ADJUSTMENT . The backrest width adjustment and, the lumbar support adjustment of the front seats (vehicles without option code 7MA: Competition package) are accomplished by a common air pump. There may be a decrease in pressure in the door-side backrest and /or the lumbar support without any user input. The plug connection between the air pump and the door-side backrest width adjustment or the bottom lumbar support may be leaking.
B3406152018-11-05. Service bulletin. SERVICE BRAKES, HYDRAULIC. ?Grinding Noise from Rear Brakes . Pebbles, road grit, or other foreign materials can get caught in between the brake protection (backing) plate and the brake disc(s), this may cause a disturbing noise in the rear axle area while driving.
B1303152018-11-05. Service bulletin. ENGINE AND ENGINE COOLING. N20, N26, N55, N63TU, S63TU and S55 Engines: Bosch Injector ETK Part Number Error What's New: ? Procedure change: indentifying injector type using an ISTA test plan. . The current version of the ETK incorporates multiple part number errors for the Bosch type injectors. Ordering the injectors by VIN number or manual identification in ETK may result in an incorrect part number.
B6124172018-10-09. Service bulletin. STEERING. STEERING WHEEL BUTTONS DO NOT FUNCTION RELIABLY: Sporadic or continuous malfunction of multifunction steering wheel buttons
B6111182018-10-09. Service bulletin. ELECTRICAL SYSTEM. AFTER EXCHANGING THE FRONT ELECTRONIC MODULE (FEM), PROGRAMMING / ENCODING IS NOT POSSIBLE: After replacing the Front Electronic Module (FEM) for an applicable repair, programming / encoding is not possible.
B3404142018-10-09. Service bulletin. SERVICE BRAKES. Diagnosis of Compound Brake System Complaints in M Vehicles:
B3103182018-10-09. Service bulletin. POWER TRAIN:AXLE ASSEMBLY. CRACKING NOISE FROM FRONT OF VEHICLE WHILE TURNING OR PARKING: Cracking noises heard from the area of the front axle when rotating the steering while stationary or at low speed.
B8402142018-10-09. Service bulletin. EQUIPMENT. CONNECTEDDRIVE/BMW ASSIST SYSTEM DIAGNOSIS INFORMATION: ConnectedDrive/BMW Assist features are partially or completely inoperative.
B6513162018-10-09. Service bulletin. EQUIPMENT. COMPONENT PROTECTION ACTIVE. HEAD UNITS CANNOT BE SWAPPED BETWEEN VEHICLES FOR TESTING.: If either the head unit (NBT-EVO or ENTRY-NAV-EVO) or the Body Domain Controller (BDC) are swapped into a different vehicle they will cause the head unit to enter a locked mode once it recognizes a different VIN.
B6507092018-10-09. Service bulletin. EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM). NAVIGATION SYSTEM: REPORTING MISSING OR INCORRECT ROAD MAP DATA: The route guidance is inaccurate and therefore irritating to the customer; or it is not possible to locate certain addresses, for instance:
B5203182018-10-09. Service bulletin. SEATS. MEMORY SEAT ADJUSTMENT IS LIMITED: After programming the vehicle with ISTA 4.10.2x, the adjustment range of the memory seat may restricted.
B1223182018-10-09. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM. S55 - CHECK CONTROL MESSAGE: DRIVE FAULTY: Check Control Message (CCM) ÒDrive faultyÓ is display for 5 seconds
B8408182018-08-06. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; ELECTRICAL SYSTEM. HEAD UNIT HIGH 2 RESET WHILE BLUETOOTH IS CONNECTED: The following event may cause an unexpected reset of the Head Unit High 2 (NBT EVO) when:
B8406162018-08-06. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; ELECTRICAL SYSTEM:SOFTWARE. BMW ONLINE NON-FUNCTIONAL: CHECK ICC-ID IN ACCOUNT: BMW Online/BMW ConnectedDrive not functional.
B6511172018-08-06. Service bulletin. EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM). NAVIGATION PRO (NBT EVO) MAP UPDATE NOT POSSIBLE, NAVIGATION DOES NOT START: Navigation system will not start at all or the: ÒNavigation system startsÓ message is permanently displayed; or
B6507092018-08-06. Service bulletin. EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM). NAVIGATION SYSTEM: REPORTING MISSING OR INCORRECT ROAD MAP DATA: The route guidance is inaccurate and therefore irritating to the customer; or it is not possible to locate certain addresses, for instance:
B5409072018-08-06. Service bulletin. STRUCTURE; STRUCTURE:FRAME AND MEMBERS. RETRACTABLE HARDTOP STATUS REQUEST SUPPLEMENT
B8403142018-07-16. Service bulletin. EQUIPMENT:ELECTRICAL. Bluetooth Connection Failures: There are various connectivity failures with the following devices: Apple iPhones: Samsung S6 and the S6 Edge.
B6608142018-07-16. Service bulletin. BACK OVER PREVENTION. Side View Camera Does Not Display Picture.
B6503182018-07-16. Service bulletin. EQUIPMENT:ELECTRICAL; EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.. NO AUDIO PLAYBACK AFTER REPLACING THE HEAD UNIT HIGH 2 (HU-H2): After replacing the Head Unit High (HU-H2) and performing ISTA4 programming, there is no audio playback.

The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.